In situ growth of DyBa sub 2 Cu sub 3 O sub 7 minus x thin films by molecular beam epitaxy

Journal Article · Mon May 07 00:00:00 EDT 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.103225· OSTI ID:6815775

Johnson, B R; Beauchamp, K M; Wang, T; Liu, J; McGreer, K A; Wan, J; Tuominen, M; Zhang, Y; Mecartney, M L; Goldman, A M ^[1]

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1. Center for the Science and Application of Superconductivity, University of Minnesota, Minneapolis, Minnesota 55455 (USA)

Films of DyBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} with transition temperatures as high as 89 K and with nominal thicknesses down to 35 A have been grown {ital in} {ital situ} using molecular beam epitaxy employing ozone as a source of reactive oxygen. The process has been successful with a variety of substrates including SrTiO{sub 3}(100), SrTiO{sub 3}(110), LaAlO{sub 3}(100), MgO(100), and yttria-stabilized zirconia. The films could be imaged with a scanning tunneling microscope at 4.2 K, indicating a conducting surface even at low temperatures.

• OSTI ID: 6815775
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 56:19; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
BOLOMETERS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DYSPROSIUM COMPOUNDS
DYSPROSIUM OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EPITAXY
FABRICATION
MEASURING INSTRUMENTS
MICROSTRUCTURE
MOLECULAR BEAM EPITAXY
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SUBSTRATES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE